Type-writing machine.



F. J. DYBTT.

TYPE WRITING MACHINE.

APPLICATION FILED AUG. 12, 1905. V @73501 5. Patented 0st. 18, 19m.

3 HEETB-BHEET l.

i INVENTGR BY A' f ,y /f

, ATTORNEYS 4MM/.In A

ya@ y W IEN A m y i Patented t. E8, 19M.

3 SHEETS-SHEET 2.

J. DYETT.

TYPE WRITING MACHNE.

APrLIoAToH FILED AUG. 12, 1905.

guides, table and feeding rollers for the paper, which are not describedherein, as they formY no part of my present invention.

The illustrated construction of my linespacing means comprises theratchet-ring 10, a pawl 19 eoacting with said ring, means for actuatingthe pavvl 19, and means for shielding 211 portion of the ratchet-ringfrom the aw `As best seen in Fig. 4, the pawl 19 is arranged atsubstantially a right angle to the end face of the platen 9 providedwith the ratchet-ring 10, and is movable longitudinally toward and fromsaid face, and also in a direction at an angle thereto. Y Thel means foractuating the pawl 19 oo nsists of a lever preferably having a uniformthrow or movement, and forming a support or carrier for the pawl. lSaidlever or carrier comprises a barrel 20 in the bore of Which the pawl isguided, an upwardly-extending tinger-engaging arm 21, and a stud 22projecting laterally from the barrel 2O intermediate of the endsthereof, at substantially a right angle to the axis of the platen.Suitable means, as a spring 23, indicated by dotted lines in Fig. 5, isarranged in the bore of the barrel 20 for moving the pavvl 19 end- Wiseinto engagement with the teeth of the ratchet-ring 10. Said stud 22 ishere illustrated as journaled in a substantially cylindrical portion orforward extension 24 of one of the side bars 13 ot' the carriage 12, andas provided at its rear end with an annular groove 25 which receives anydesirable means, as a screw 2U, for preventing detach- Vnient of thepawl-carrier from the part 211.

A spring 27 is coiled about the substantially cylindrical port-ion 24 ofthe carriage and has one end tixed to said carriage by the screw 26, andits other end detachably engaged with a lateralijf-extending shoulder 2Sprovided on the end of the barrel 20 nearestv the ratchet-ring 10. Inthe operation of the pawl-carrier, the. upper end of the arm 21 isengaged by thc linger and pressed outwardly, thus rocking upwardly theinner ends of the barrel 20 and the pawl 19 and advancing the'platen 9.

The means provided for shielding a portion of the toothed ring 1() fromthe pawl 19, operates to prevent the engagement of said pawl with one ormore teeth in register therewith.during the first part of the vmovementof the pawl, and thus varies the effective throw or feed thereof. Saidmeans preferably comprises a revoluble sleeve 29, arms 30. 31jn-'ojecting radially from the ends ot' the, sleeve and rigid therewith,and means coat-.tingl with the arm 31. for moving` said arm vvariabledistances and holding the same in its adjusted position. The sleeve 29is mounted on the. shaft ll between one of the side bars 13 of thecarriage and the end face of the platen provided wn'n the ring 10. Thearms30, 31 swing with the sleeve 29 on the shaft 11, the free end of thearm 30 being movable in between the pawl 19 and the ring 10.

As here illustrated, Figs. 5 and 10, the means for moving the sleeve 29and the arms 30, 31 and holding the same in their adjusted positionconsists of a member movable revolubly and axially and comprising a stem32 journaled in an arm 33 projecting upwardly from the side bar 13provided with the cylindrical portion 24, a pinion 34 fixed on the innerend of the stem 32 and meshing with teeth on the free end of the arm 31,a hand-piece 35 on the outer end of the stem 32, and a stop-member, as apin 3G, tixed to the stem 32 and coacting with a plurality ofstop-members, as notches 3T, F ig. 4, in the inner face of the arm33.The end of the stem 32 provided with the handpiece 35 projects beyondthe outer side of the arm a sufficient space. being interposed betweenopposing faces of the arm and the hand-piece 35 to receive a spring 3Swhich is coiled about the stem 32 and normally holds the stop-pin 36 inengagement with the walls of one of the notches 37. ln adjusting theposition of the sleeve 29 and the arms 30, 31, the hand-piece 35 ismoved toward the arm against the aetion of the spring 38 a suilicientdistance to carry the pin 35 out ofthe notch 37 formerly occupiedthereby, whereupon the hand-piece is moved about its axis, and owing tothe engagement of the pinion 34 with the arm 31, the parts 29. 30, 31revolve bout the shaft 1l. Ai'li'ter the desired ad. v..tment of the arm30, the hand-piece 35 is released and the vspring 33 moves the stemendwise and t'orees the stoppin 36 into one of the notches 3l.

' My invention may be equipped with any desirable means for preventingundue movement of the platen, hert` shown, Fig. 10, as a friction-roller39 which engages the end face of the platen provided with the ring 10and is carried by a plunger 40 guided in the arm 33 and forced towardthe opposingv surface of the platen by a spring- 41.

The carriage of my typewriting machine is preferably provided with arack-bar 42 which coaets with a suitable pinion 43 of theeseapemclit-mechanism for the carriage, and is formed with arms orrack-lifters 44 extending from front to rear of the carriagesnl'istantially parallel to the axis of the pawlcarrier and pivotedintermediate of heir ends to the side bars 13 by pivots 45 extendingsubstantially parallel to the platen 9. Said arms 44 are providedintermediate of their rear ends and the pivots #t5 with slots t6 forreceivingr pins 47 projecting from the side bars 13. The front end ofthe left-hand bar .44 is provided with a thumb-piece 48 forfacilitating' downward movement thereof @Teorie vSpacing iiieelianisinwill now be readily nnderstood upon ret renee to the zioregoing deeoripfn the accompanying' drawing, and it will loe noted 'tliet more or lesschange may be .made in tlie eomponent parte thereof Withoutdeperting'from the Spirit oi any invention.

time fully described my invention., what il f in as new end desire 'tosecure oy Lettere ..."atent7 isn l lv ln a typewriting oiaoliinen theeoi'nlaina tion W" li carriage, and e., platen journaled there and'provided with arateliet-ring; of

e. feeding' pa'wl having a uniform throw or nioven'ient7 menne Aforshielding a portion of tlie iiatehet-ring from the pawl, o toothed partfor moving seid means -variabledistonces to change the eiective throw oriieed of the pawl, and e pinion ooaeting with said toothed part.sabetentially as and for the purpose set tortli.

2. ln a typevvriting machine, the eomiiinau tion with e.. reinriage7 ende platen iournaled therein andpro'vided with a ratchet-ring; of afeeding; l axvi having a uniform throw or movement, a pivoted armmovable in between the ratchet-ring' and tlie paWl7 means for movirgsaid erin variable distances about its pivot to change the eteetivetlnrov/ or feed oi the paWl, Said means including a pinion., endV meansinterposed between tlie arm and the pinion for Shifting the arm as thepinion is rotated, Substantially ee and for tlie purpose described.

3. ln a typewriting niaoliine, the combina-- i tion with a Carriage, anda platen having a ratelietering and provided with. a Shaft jour-- naledin tlio carriage; of a pawl having a. uniform throw or movement, asleeve on the Shaft oli the platen, an arm extending from the 'sleeveand having a part thereof de- Signed to loe interposed between theratchetvring1 end the pawl, e second arm extenffjinp; from the Sleeveand provided with teetli., and a pinion ooaoting witlL Said teeth,substantially and for the purpose specified.

et. ln a typewriting machine, the combination with a carriage having abar provided with an upwardly extending erm, and a platen having aratchet-ring, and provided with a shaft journaled in the carriage; of apawl having a uniform t-lirovvor movement, e sleeve on the shaft of theplaten between y the bar of the carriage and the ratchet-ring,

.means on the sleeve inovaole in between seid ratcliooring and the pawl,and a pinion journeled in Said upwardly extending" erm and connected tothe sleeve for movin g Seid means variable distances to change tie elle@tive throw or feed oit the paivi, substantially as fort/ne purpose seiforth. Y l

5. in a typewriting niaeliine, the from' nation with carriage. andplaten journeled lierein end provided ifvith ratelieteng; oi? a feedingpewl leaving a uniform throw or movement, means for shielding portion ofthe reteiiet-ring from die pao/*i7 e e'aop-inernu leer7 and, means for.moving die me-named means variable distances to Change tlie effectivetlirow or feed of the pov/vl.l said second? named ineens inolndingerotatable adineting member7 and a part revoluole with the adjustingmember and coasting with the Stop-member, the adju-Sting); niemeerbeing; movable axially for oerryin' part into `and ont oi engagementwith the @top-meinm ber9 substantially as and for the purpose speoed.

n 6. .in a typevvriting machine, the combination with a carriage, sind apieten journaled therein and provided with e. ratchet-ring; feeding-paidhaving n uniform throw or inoveinent7 ineens for Shielding ,a portion oftire ratoleet'ring from lie pe'vvl. a stok member, and' ineens formoving the lire-tnained means variable distano e to change the effectivetnrovv or feed of the pewl, seid second-nemed ineens including; arotatable adjusting; member, end a part revoluole with theadjusting'member and coaeting with the etop-meinbei, the adjustingmember being,l movable axially for 4carrying said port into and out ofengagement with the stop-inet-- loer, and a epring 'forcing 'theadjusting ineniioer axially in one direction, solisten tially es enc.for the purpose set forth.

"Z. lin e typeyvriting machine, the combination with a carriage having aportion there of provided with a plurality of Stop-inemloers, and aplaten journaled in the carriage end provided with a retcliet-riiigg ofo. feed ing pevvl having' a uniform throw or movement, means forshielding a portion of the ietolieti'ing from tlie pawl, and means formoving the first-named means variable die tonces to change the eileetivethrow or feed of the pawl, the second-named means including a rotatableadjusting member joornaled in Said portion or' the frame and providedwith a part movable therewith, the adjuso ing member being movableaxially for carryn ing said part into and out of-engagement with thestop-members, substantially as-and for the purpose described.

8. In a typewriting niachine,the combination with a carriage having eportion thereof provided with a plurality of stop-mem'- bers, and aplaten journaled in the carriage and provided with a ratchet-rings; of afeeding pavvl having a uniform throw or nieve ment, means loi shieldinga. portion of the lli.)

ratchet-ring from the pawl, and means for moving the first-named meansvariable distances to change the effective throw or feed of the pawl7the second-named means including a rotatable adjusting member providedwith a stein journaled in said portion of the frame, and with a partmovable therewith, the adjusting member being movable axially forcarrying said part into and out of eni gagement with the stop-members,and a 'spring mounted on the stem for moving the l signed my name n thepresence of two atl testing Witnesses, at Ilion in the count ofHerkimer, in the State of lNexfYork, thls 25 day of July, 1905. f y

y FRANK JA. DYETT. Witnesses:

A. B. RUSSELL, PETER MARHAVER.'

